Which jQuery function can be used to filter out elements from a set of matched elements?

What does the method .one() do?

How would you check if an HTML element with an id of someElement exists in the DOM?

What does the parent selector do?

Which jQuery method reduces the set of matched elements to the one at the specified index?

Which correctly uses the replace() method?

It is possible to use relative values for jQuery animate() method.

How do you fetch the first span on the page which has the class 'white'?

Which is NOT a valid example of a selector filter?

How do you change the CSS property 'color' of an element?

code for making all div elements 100 pixels high?